If you have seen any older movie you have probably seen people getting to work grabbing their time card and getting it stamped to show what time they have arrived at work. This is called an authentication system or timesheet. While now the authentication system is more digital than before, the concept still applies. This isn’t the only use of computer on the job or at work in general. For instant say there is a presentation you must give to the boards of directors, you might want to make a PowerPoint to give visuals to help drive home your point. Or perhaps your work retail and the pair of pants a customer want is out of stock, you could easily order it online for them, and minimize the headache of shopping for those who hardly shop. Whatever the case, computer can help.